Let the speed of the slower car = X
The speed of the faster car would be X + 15
They both traveled 3 hours and went 315 miles
Set up an equation:
3x + 3(x+15) = 315
Now solve for x:
3x + 3x +45 = 315
Simplify:
6x + 45 = 315
Subtract 45 from both sides:
6x = 270
Divide both sides by 6:
x = 270/6
x = 45
The slower car was doing 45 miles per hour.
The faster car was doing 60 miles per hour.
Hello,
Let's assume i the number of lines,
u(i) the number of regions:
A true positive is when a person who is infected receives a positive test (someone whose test comes back positive but who doesn't really have the infection would be called a false positive).
A symbolic way to represent the probability of a true positive would be the infection detected divided by the total of all the options:
D/(I + U + D + N)
2x+0.5 i think this is right
The metric volume of the cube is 7.2